Contributed By Luther Rechtsanwaltsgesellschaft mbH
Key Laws and Regulations
The banking sector in Luxembourg operates under a comprehensive legal and regulatory framework that integrates both national legislation and European Union directives and regulations. The backbone of Luxembourg’s banking framework is the Law of 5 April 1993 on the Financial Sector (LFS), as amended, which governs authorisation, prudential supervision, conduct of business, and organisational requirements for credit institutions established in Luxembourg. In addition, the banking regulatory web is also based on the following major legal texts:
The Luxembourg regulatory regime is further supported through CSSF regulations and circulars and guidelines issued by the European Banking Authority, which complement the laws and regulations and specify the application thereof.
Supervisory Authorities
The Commission de Surveillance du Secteur Financier (CSSF) and the European Central Bank (ECB) are the principal supervisory authorities responsible for licensing and overseeing credit institutions in Luxembourg. Under the Single Supervisory Mechanism (SSM), significant credit institutions are directly supervised by the ECB, while less significant institutions remain under the direct supervision of the CSSF within a harmonised European framework. The Banque Centrale du Luxembourg (BCL) contributes to monetary policy implementation, liquidity monitoring, and macroprudential oversight as part of the European System of Central Banks (ESCB), working in close co-operation with both the ECB and the CSSF. The BCL also co-ordinates with the Ministry of Finance on matters relating to financial stability and macroprudential policy.
Authorisation Requirement
A legal entity intending to carry out the business activity of a credit institution in Luxembourg must first obtain written authorisation pursuant to the LFS and the SSM conferring specific tasks on the ECB concerning policies relating to the prudential supervision of credit institutions (the Single Supervisory Mechanism Regulation or SSM). Under the LFS, a credit institution is defined as an undertaking whose business consists in receiving deposits or other repayable funds from the public and granting credits for its own account.
Institutions incorporated outside the European Economic Area (EEA) are required to obtain a licence from the competent Luxembourg authorities before commencing operations in Luxembourg. In contrast, credit institutions authorised in another EEA member state may provide banking services in Luxembourg by exercising their passporting rights under Directive 2013/36/EU (the Capital Requirements Directive), subject to compliance with applicable notification procedures.
Operating as a credit institution without proper authorisation constitutes a criminal offence under Luxembourg law and may give rise to both administrative sanctions (including fines) and criminal prosecution. The authorisation process ensures that only entities meeting stringent prudential, governance, and conduct requirements – set forth in the LFS and relevant EU legislation – are permitted to operate as banks in Luxembourg.
Application Process, Timeline and Regulator Engagement
Potential applicants seeking a banking licence in Luxembourg must submit their application to the CSSF. The CSSF conducts an initial assessment under national law and, in the case of significant credit institutions within the meaning of the SSM, submits a draft decision to the ECB. If the ECB raises no objections or approves the draft decision, authorisation is granted to the applicant. For less significant institutions, authorisation is granted directly by the CSSF following notification to the ECB.
The application must include, among other things:
Timeline
Upon receipt of an application, the CSSF first conducts a completeness check. Once deemed complete, a full review follows, which typically involves iterative engagement with applicants through requests for clarifications or additional documentation. As per the LFS, the CSSF must reach a decision within six months from submission of a complete file – ie, when all required information has been provided – but not later than twelve months from initial submission. In practice, straightforward applications are generally processed within six to nine months; more complex cases may take up to 12 months.
Activities Covered and Restrictions
A bank granted a banking licence in Luxembourg is authorised to provide typical banking services such as deposit-taking, lending, financial leasing, guarantees, money market operations, and other financial services as enumerated in Annex I of the LFS. In addition to these core activities, a licensed bank may also offer payment services, issue electronic money and provide investment services; however, it must comply with all applicable provisions set out in sector-specific legislation (for example, the 2009 Law, the Law of 30 May 2018 on markets in financial instruments, and any relevant laws governing crypto-assets). Where required by law or regulation – particularly for novel or high-risk activities – additional registration or notification obligations may apply.
Each service offered by a bank must form part of its business plan as communicated to the CSSF at the time of authorisation or subsequently updated if new activities are contemplated. Any material change or extension to the range of permitted activities generally requires prior notification to or approval by the CSSF.
Banks are prohibited from engaging in non-financial commercial and industrial business activities as well as insurance services except where such activities are strictly ancillary to their financial business (for example, acquisition or management of collateral). This prohibition serves to safeguard prudential soundness and prevent conflicts between banking operations and unrelated commercial interests.
Ancillary and Complementary Activities
Banks in Luxembourg are permitted to offer a range of ancillary activities in connection with their provision of investment services, as defined under the LFS and relevant EU legislation. These ancillary activities include:
All such ancillary services may only be offered insofar as they are directly related to the investment services provided by the bank.
Passporting and Cross-Border Activities
Luxembourg banks benefit from the European passport regime under CRD IV, which enables them to provide banking services across the EEA either on a cross-border basis or through the establishment of branches, without requiring separate local licences or incorporation of new entities in host countries. A Luxembourg-authorised bank intending to provide cross-border services or establish a branch in another EEA member state must notify the CSSF of its intentions. The CSSF is then required to notify the competent authority of the host member state within one month; activities may commence following this notification process, subject to any additional requirements imposed by host authorities – particularly in cases involving branch establishments.
The establishment of branches or subsidiaries outside the EEA requires prior approval from the CSSF before operations can begin.
Non-EEA credit institutions wishing to offer banking services in Luxembourg must obtain full authorisation from the CSSF, whether operating through a branch or by establishing a subsidiary. A subsidiary incorporated in Luxembourg is treated as a separate legal entity and is subject to all authorisation requirements applicable to domestic credit institutions. A branch does not constitute a distinct legal entity but must nevertheless receive a banking licence from the CSSF; this process includes an assessment of both the foreign parent institution and its group structure. In such cases, close co-operation between the CSSF and the relevant foreign supervisory authority is expected, particularly with respect to prudential standards and ongoing supervision.
Requirements Governing Change in Control
The acquisition, direct or indirect, of a qualifying holding in a Luxembourg credit institution or any further increase in such a holding is subject to prior notification and approval by the CSSF. Notification must be made for any transaction that would result in:
Any person intending to reduce their participation below these thresholds must notify the CSSF in advance, without approval.
These thresholds apply to both direct and indirect holdings (including concerted action), and the CSSF examines the entire shareholding structure up to the ultimate beneficial owner(s). For indirect holdings, the CSSF applies the control criterion and the multiplication criterion to determine the participation percentages.
There are no blanket prohibitions on the acquisition of qualifying holdings; however, all acquirers, regardless of nationality, must satisfy the CSSF’s prudential requirements.
Regulatory Filings and Assessment Procedure
Any person intending to acquire, increase, or decrease a qualifying holding in a Luxembourg credit institution must submit a formal notification to the CSSF in accordance with the LFS, relevant EU legislation, and supporting CSSF circulars. Notification is effected by submitting a notification letter to the CSSF accompanied by all relevant documentation and information supporting the transaction. The notification must include, among other things:
The CSSF acknowledges receipt of the notification within two working days from receipt. The assessment period is sixty working days commencing from acknowledgement that the file is complete; this period may be extended once by up to thirty additional working days if further information is requested from the applicant. To avoid delays, especially in complex transactions, pre-filing discussions with the CSSF are strongly recommended.
The examination of a notification focuses on five key assessment criteria:
The CSSF may object to a proposed acquisition if any of these conditions are not met; otherwise, approval will be granted. For significant institutions under the SSM, following its review, the CSSF communicates its proposal together with all relevant documentation to the ECB, which retains final authority to object or approve.
Post-Approval and Ongoing Requirements
Once a proposed acquisition is approved, ongoing requirements include:
If control is acquired without prior approval from the CSSF (and where applicable, the ECB), the authorities may take appropriate measures as provided by law. Such measures may include suspension of voting rights attached to the shares concerned, orders requiring divestment of shares acquired unlawfully, imposition of administrative sanctions or fines, or other remedial actions necessary to safeguard the sound management and stability of the credit institution.
Statutory and Regulatory Requirements
Credit institutions in Luxembourg are required to maintain a clear organisational structure with well-defined, transparent, and consistent lines of responsibility; effective procedures for identifying, managing, monitoring, and reporting risks; as well as adequate internal control mechanisms. These requirements are established by the LFS and further detailed in CSSF Circular 12/552 on central administration, internal governance, and risk management (Circular 12/552). Both the LFS and Circular 12/552 require the permanent existence of robust internal control mechanisms based on the three-lines-of-defence model: operational management as the first line; independent risk management and compliance functions as the second line; and an independent internal audit function as the third line.
The management body – which includes both the board of directors and authorised management – must collectively possess the necessary knowledge, skills, experience, integrity, and professional competence to ensure sound and prudent management at all times. The CSSF assesses both individual members’ integrity (“fit and proper” criteria) as well as collective suitability before appointment; it may object to proposed changes in board composition if these could impair effective governance or prudent oversight.
Furthermore, credit institutions must establish a documented risk appetite framework approved by their management body; implement remuneration policies aligned with long-term institutional interests that do not encourage excessive risk-taking, and adopt comprehensive policies for identifying, preventing, or managing conflicts of interest.
Voluntary Codes and Industry Initiatives
While there is no single national voluntary code specifically applicable to credit institutions in Luxembourg, many institutions – particularly those belonging to international banking groups – adopt group-wide governance frameworks established by their parent entities. These frameworks frequently incorporate international best practices relating to environmental, social, and governance (ESG) criteria and sustainability standards. In addition, the Luxembourg Bankers’ Association (ABBL) promotes ESG and sustainability best practices through recommendations and guidelines which, although not legally binding, encourage member institutions to pursue higher standards of transparency, stakeholder engagement, and ethical conduct beyond minimum legal requirements. Adoption of such voluntary codes remains at the discretion of each institution but can serve as an important tool for enhancing market reputation and stakeholder confidence.
Diversity Requirements
Recent amendments to the LFS, as well as updates to Circular 12/552, have significantly strengthened provisions regarding diversity, independence, and gender balance within the management bodies of Luxembourg credit institutions. These changes implement requirements from Directive (EU) 2019/878 (CRD V), as transposed into Luxembourg law through the LFS.
Credit institutions are now required to adopt a formal diversity policy applicable to their management bodies – including both supervisory and management functions – which must address factors such as gender, professional background, age, and geographical origin. The objective is to ensure a broad range of perspectives and experiences in strategic decision-making processes.
In addition, enhanced independence requirements mandate that a sufficient number of independent members serve on management bodies – particularly in significant institutions – to promote effective oversight and robust governance.
The gender-neutral remuneration principle introduced by CRD V – and implemented in the LFS – applies across all staff whose professional activities have a material impact on the institution’s risk profile (“identified staff”). This principle requires that remuneration policies ensure equal pay for equal work or work of equal value regardless of gender.
Bankers’ Oath or Equivalent Binding Rules of Conduct
Luxembourg does not impose a statutory “Bankers’ Oath” or any equivalent formal pledge of professional conduct akin to those required in some other jurisdictions. However, all employees of credit institutions – including both management and staff – are subject to strict professional conduct rules under the LFS, which are enforced by the CSSF. These rules encompass duties of integrity, confidentiality, diligence, avoidance of conflicts of interest, and compliance with anti-money laundering (AML) obligations. Breaches of these duties may result in disciplinary action or regulatory sanctions.
In addition to statutory requirements, many banks require their employees to adhere to internal codes of ethics or conduct. These internal codes often reinforce legal obligations and may also address broader issues such as ethical behaviour, whistle-blowing procedures, and corporate social responsibility.
Statutory and Regulatory Requirements
In Luxembourg, the appointment of directors and managers (“senior management”) of credit institutions is subject to stringent regulatory scrutiny by the CSSF, pursuant to the LFS and detailed guidance set out in relevant CSSF circulars, such as Circular 12/552 on internal governance. Senior management encompasses members of the management body in both its supervisory and managerial functions – including executive and non-executive directors, board members, chief executive officer, chief risk officer, chief compliance officer – among others. Credit institutions are required to clearly define roles, responsibilities, and reporting lines for each designated individual as part of their internal governance framework.
The process for appointing members of senior management is as follows:
Screening and Ongoing Suitability
The bank is responsible for conducting comprehensive initial due diligence on all candidates for management positions before submitting them to the CSSF. This due diligence must address all aspects of the fit and proper criteria – including integrity, professional competence, experience, time commitment, independence, and absence of conflicts of interest – as set out in the LFS and relevant CSSF circulars.
Ongoing monitoring is required to ensure continued compliance with suitability standards throughout each manager’s tenure. This includes periodic reassessment – such as during annual reviews or following significant events – and prompt action if any concerns arise regarding a manager’s fitness or propriety.
Any change that may affect a manager’s suitability – whether arising from changes in role or function or from new circumstances such as criminal proceedings or loss of professional qualifications – must be promptly notified to the CSSF. The CSSF may then reassess the individual’s suitability and, if necessary, order their removal or replacement.
All persons participating in the management of a credit institution must satisfy fit and proper standards continuously throughout their tenure. Banks are also required to maintain an up-to-date register of key function holders and authorised managers at all times; this register must be available for inspection by the CSSF upon request.
The CSSF regularly reviews institutions’ governance arrangements and fit and proper frameworks during on-site inspections and thematic reviews. Any deficiencies identified during these supervisory activities may result in remedial measures or sanctions imposed by the CSSF.
Individuals Subject to the Remuneration Requirements
Remuneration in Luxembourg credit institutions is governed by the LFS, relevant CSSF circulars, and the European Banking Authority (EBA) Guidelines on sound remuneration policies (EBA/GL/2021/04). These rules implement requirements from CRD V, as transposed into Luxembourg law through the LFS.
The remuneration framework applies to:
CRD V introduced flexibility, allowing remuneration rules to be applied on a solo, sub-consolidated, or consolidated basis depending on the group’s organisational structure and risk profile; this determination is subject to regulatory assessment by the CSSF.
The principle of gender-neutral remuneration – formally enshrined by CRD V – requires equal pay for equal work or work of equal value as well as transparent pay structures. Institutions must document their approach to ensuring gender neutrality within their remuneration policies.
Smaller and non-complex institutions may benefit from proportionality waivers with respect to certain deferral requirements and pay-in-instruments obligations; eligibility for such waivers is determined according to specific criteria set out in EU law and detailed further in CSSF guidance.
Relevant Remuneration Principles
Remuneration policies in Luxembourg credit institutions must promote sound and effective risk management, align pay with long-term performance, and discourage excessive risk-taking. These requirements are set out in the LFS, relevant CSSF circulars, EU directives (notably CRD IV/CRD V), and EBA Guidelines on sound remuneration policies. Key requirements include:
Looking ahead, CRD VI is expected to introduce stricter deferral rules, enhanced transparency regarding ESG-linked metrics in remuneration frameworks, and a broader scope for identifying material risk takers; however, these changes are not yet in force.
Regulators’ Supervisory Approach
The CSSF oversees compliance with remuneration requirements in Luxembourg credit institutions. For significant institutions under the SSM, this oversight is exercised in co-ordination with the ECB, which holds direct supervisory authority; for less significant institutions, primary responsibility remains with the CSSF.
Supervisory focus areas include:
If deficiencies are identified during supervisory reviews or inspections, the CSSF may require remediation – including changes to remuneration policies or practices – restrict or suspend variable pay awards, or impose administrative sanctions such as fines or other measures provided by law.
Luxembourg’s anti-money laundering and counter-terrorist financing (AML/CTF) regime is primarily governed by the Law of 12 November 2004 on the Fight Against Money Laundering and Terrorist Financing, as amended (AML Law). The AML transposes the Fourth and Fifth AML Directives into national law and incorporates provisions of the Sixth AML Directive (Directive (EU) 2018/1673). The AML Law is regularly updated to reflect evolving EU requirements as well as international standards such as those set by the Financial Action Task Force (FATF). It is complemented by CSSF Regulation 12-02 and several CSSF circulars, which provide detailed guidance on governance arrangements, internal controls, customer due diligence obligations, reporting requirements, staff training, and risk-based supervision for credit institutions.
As mentioned, in June 2024 the European Union adopted a new AML package consisting of:
These measures aim to harmonise AML/CTF standards across member states through directly applicable regulations, and introduce direct EU-level supervision through the AMLA. The directive will require national transposition within a specified timeframe.
Luxembourg has also implemented robust beneficial ownership transparency measures. The Register of Beneficial Owners (RBE) for companies has been effective since March 2019; the Register of Fiduciaries and Trusts (RFT) has been effective since July 2020. Companies, trustees, and fiduciary agents are required to collect accurate, adequate, and up-to-date beneficial ownership information for filing with these registers. These registers are accessible to competent authorities and, under certain conditions, to members of the public. Non-compliance with these obligations may trigger administrative measures or criminal sanctions.
Core Obligations for Banks
Banks qualify as obliged entities under the AML Law and must apply a risk-based approach proportionate to their size, activities and customer profile. Their principal duties include:
Deposit Guarantee Scheme (DGS) Requirements
Luxembourg’s depositor protection regime is governed by the 2015 Law, which transposes DGSD into national law. This framework establishes two distinct but complementary mechanisms:
The law aims to protect eligible depositors and investors by ensuring timely repayment of covered deposits and assets when a credit institution or investment firm becomes insolvent or unable to meet its obligations.
All credit institutions authorised in Luxembourg are required to participate in the FGDL. Branches of third-country banks operating in Luxembourg must also be members, whereas branches of EEA banks remain covered by their home-country deposit guarantee schemes under DGSD’s home–host framework.
Credit institutions must:
Administration and Governance
The FGDL is an independent legal entity governed by public law, established under the 2015 Law. The FGDL collects annual risk-based contributions from participating credit institutions, manages its financial resources prudently, and ensures reimbursement of depositors when a credit institution in Luxembourg fails.
Operational oversight and co-ordination are exercised through the Conseil de protection des déposants et des investisseurs (CPDI), an internal executive body within the CSSF. The CPDI manages and administers both the FGDL and the SIIL, instructing payouts when relevant conditions are met.
The FGDL’s intervention is triggered when either:
Once activated, the FGDL must reimburse covered depositors within seven working days, in accordance with EU standards set by DGSD.
Classes of Depositors and Deposits Covered
Coverage under Luxembourg’s deposit guarantee scheme extends to most natural persons and a wide range of legal entities – including small and medium-sized enterprises (SMEs), non-profit organisations, and certain public authorities – as set out in the 2015 Law. Excluded from coverage are financial institutions, investment firms, insurance undertakings, collective investment schemes, pension funds, and government bodies; these exclusions apply irrespective of whether such entities hold accounts directly or as intermediaries.
The scheme protects cash deposits held in any currency – including current accounts, savings accounts, and term deposits – provided they are repayable by a credit institution participating in the FGDL. Excluded from protection are bearer deposits (due to lack of traceability), deposits arising from money-laundering offences or other criminal activities, and all deposits held by excluded entities.
Special rules
Coverage Limits and Payout
The standard coverage limit under Luxembourg’s deposit guarantee scheme is EUR100,000 per depositor per credit institution, irrespective of the number or type of accounts held. This limit applies on an individual basis and is aggregated across all eligible deposits and accounts maintained by a depositor at the same bank – including joint accounts, where each account holder benefits separately from coverage up to this amount.
The FGDL pays out compensation in euros (EUR), even for deposits denominated in other currencies; conversion is made using the official exchange rate applicable on the date when unavailability of deposits is determined – either by CSSF decision or court declaration of insolvency. Payments are made within seven working days in accordance with EU standards; in exceptional circumstances where this deadline cannot be met, mechanisms exist to ensure rapid access to funds through partial or advance payments.
For investment-related claims, the SIIL provides protection up to EUR20,000 per investor. This covers client assets – such as securities or other financial instruments – held or administered by failed institutions but does not extend to losses arising from market fluctuations or poor investment performance.
Funding of the Scheme
The FGDL is funded through annual risk-based contributions collected from all member institutions. These contributions are calculated based on each institution’s amount of covered deposits and its individual risk profile, in accordance with Commission Delegated Regulation (EU) 2015/63.
If necessary – when available financial resources fall below the required target level of 0.8% of covered deposits as set by EU law – the FGDL may impose ex post contributions on its members or access back-up financing arrangements. Such arrangements may include borrowing from other deposit guarantee schemes or establishing credit lines with commercial banks to ensure sufficient liquidity.
The FGDL’s assets are strictly segregated from those of its member institutions and are invested conservatively in order to maintain high liquidity and capital preservation, thereby ensuring prompt availability of funds for depositor reimbursement within the statutory payout period.
Basel III Adherence and Implementation
Luxembourg implements the Basel III framework through the CRR, which is directly applicable across the EU, and the Capital Requirements Directive V (CRD V), as transposed into national law by the LFS and complemented by CSSF regulations and circulars. Together, these instruments form part of the Single Rulebook governing prudential standards, internal governance requirements, and disclosure obligations for credit institutions in Luxembourg; this harmonised framework ensures consistency in prudential supervision across all EU member states.
The forthcoming EU banking package – comprising CRR III and CRD VI – will complete implementation of the final Basel III reforms. Key features include the introduction of an output floor (limiting capital benefits from internal models relative to standardised approaches), revised methodologies for calculating credit risk, market risk, and operational risk in line with Basel III standards, enhanced integration of ESG risks into risk management frameworks, stricter conditions for third-country bank access to EU markets, and broader reporting requirements aimed at increasing transparency for both supervisors and market participants. These reforms are expected to be phased in over several years following their adoption at EU level.
Risk-Management Framework
Banks in Luxembourg must operate sound risk-management and governance systems in accordance with the LFS, CRD V as transposed into national law, EBA/GL/2021/05, relevant CSSF circulars – including Circular 12/552 – and CSSF supervisory expectations. Key features include:
Quantity and Quality of Capital
Initial capital
Luxembourg credit institutions must hold a minimum paid-up share capital of EUR8.7 million, which cannot fall below the authorised capital level as set out in the LFS and aligned with Article 12(1) CRR.
Pillar 1 requirements
In addition to the minimum capital requirement, institutions must maintain:
Pillar 2 requirements
Under Pillar 2, following SREP, the CSSF may impose institution-specific capital add-ons to address risks not fully reflected under Pillar 1 requirements.
Additional capital buffers (to be met in CET1)
These buffers are cumulative where applicable.
Breaching the combined buffer requirement automatically triggers Maximum Distributable Amount (MDA) restrictions on dividends, Additional Tier One coupon payments, and variable remuneration in accordance with CRD/CRR rules.
Liquidity Requirements
To strengthen both short- and long-term funding resilience, Luxembourg applies the Basel liquidity ratios as set out in the CRR, which is directly applicable in Luxembourg and further detailed by EBA guide-lines and CSSF circulars:
In addition to meeting these quantitative ratios, banks must implement robust qualitative liquidity-risk governance frameworks – including early-warning indicators, comprehensive stress testing covering both idiosyncratic and market-wide scenarios, actionable contingency funding plans, and ongoing monitoring of asset encumbrance as well as intraday liquidity positions – in accordance with CRR requirements and EBA/CSSF guidance.
Systemically Important Banks and Supervisory Intensity
Luxembourg banks fall under the SSM:
Systemically important banks face heightened supervisory expectations:
Luxembourg’s regime for the recovery, resolution, and insolvency of banks is primarily governed by the 2015 Law, which transposes the BRRD into national law. This legislation establishes a comprehensive framework covering recovery planning, early intervention powers, resolution measures – including depositor protection – and insolvency proceedings.
At EU level, this framework operates within the Single Resolution Mechanism (SRM), created by Regulation (EU) No 806/2014. Under this mechanism:
Once an institution is deemed “failing or likely to fail”, and where neither private nor supervisory measures can restore viability, the relevant resolution authority may apply one or more statutory resolution tools:
All banks are required to prepare detailed recovery plans setting out measures to restore financial soundness under stress scenarios; these plans are reviewed annually by the CSSF (or ECB for significant institutions). Supervisors may also exercise early-intervention powers – such as requiring management changes or restricting certain business activities – to stabilise an institution before insolvency becomes inevitable.
Resolution is initiated when:
Legal and Regulatory Framework
ESG regulation in Luxembourg banking is driven primarily by EU law, with national implementation and supervision by the CSSF. Key instruments include:
Integration of ESG Risks
Banks must identify, measure and manage ESG risks within their existing risk frameworks. In practice this requires:
The CSSF’s supervisory reviews increasingly test how ESG risks are integrated into ICAAP/ILAAP methodologies and whether quantitative data support those assessments.
Disclosure and Reporting Obligations
Pillar 3 ESG disclosures
Article 449a CRR and the EBA ITS on ESG disclosures (EBA/ITS/2022/01) require large institutions to publish quantitative data on:
These disclosures are increasingly assessed during SREP reviews and may influence Pillar 2 capital expectations.
CSRD and sustainability reporting
The CSRD, once transposed into national law, extends non-financial reporting to large companies and listed SMEs, including banks. Reports must follow the European Sustainability Reporting Standards (ESRS), use digital tagging (XBRL), and provide double-materiality analysis – covering both how sustainability issues affect the bank and how the bank affects society and the environment. The CSSF has designated CSRD compliance as a supervisory priority.
Legal and Regulatory Framework
From January 2025 onwards – with full application of DORA – Luxembourg credit institutions must comply with enhanced digital operational resilience requirements.
Incident reporting
Institutions must classify ICT incidents by severity; major incidents must be reported promptly to the CSSF using standardised templates with follow-up submissions including root-cause analysis/remediation plans. Minor incidents must still be logged internally for audit purposes.
Digital operational resilience testing
Regular testing – including threat-led penetration testing at least every three years for critical/systemically important institutions – is mandatory; all vulnerabilities identified through such testing must be remediated/documented for supervisory review.
ICT third-party risk management
Outsourcing arrangements involving ICT services require enhanced due diligence/contractual oversight: maintaining a register of all arrangements; ensuring contracts include mandatory clauses on access/audit/termination; preparing contingency/exit strategies; with certain providers designated as critical ICT service providers subject to direct EU-level oversight under DORA.
Information sharing
Banks may participate in cyber-threat intelligence-sharing networks – provided confidentiality obligations/competition safeguards are respected – to strengthen sector-wide resilience against emerging threats such as cyber-attacks.
CSSF Supervisory Approach
The CSSF will supervise compliance with DORA through thematic reviews, incident-reporting assessments, and on-site inspections in accordance with both DORA requirements and established supervisory practices.
Initial focus areas include:
Where weaknesses are detected during supervisory activities, the CSSF may impose remedial actions or – where warranted – administrative sanctions such as fines or other measures provided under DORA and national law. The authority also co-ordinates with other EU regulators through the Joint Oversight Forum established by DORA to ensure consistent cross-border enforcement.
Luxembourg’s existing ICT risk management standards under CSSF Circular 20/750 (on information and communication technology (ICT) and security risk management) and outsourcing standards under CSSF Circular 22/806 (on outsourcing arrangements), as amended following the entry into force of DORA, remain important sources of regulatory obligations for all relevant institutions.
Banking regulatory updates in Luxembourg are predominantly steered at the EU level. CSSF and the BCL are actively aligning domestic requirements with new EU rulebooks while modernising their supervisory approach through increased use of data analytics (“SupTech”), enhanced data collection processes, risk-based thematic reviews, and targeted inspections.
Going forward, banks in Luxembourg will need to implement several important reforms in laws and regulations, including, but not limited to, the following outlined below.
The CSSF’s supervisory strategy remains pragmatic; however, expectations regarding documentation quality and data integrity continue to rise across all risk disciplines. Institutions should anticipate more granular data requests from supervisors alongside heightened scrutiny of internal controls, governance arrangements, and compliance documentation.
CRD VI/CRR III Implementation
The CRD VI and the CRR III, published in July 2024, will fundamentally reshape the EU prudential landscape from 2026 onwards. In Luxembourg, the process of transposing CRD VI commenced in October 2025 with Bill No 8627, which will amend the LFS. By contrast, CRR III is directly applicable across all member states without further national implementation measures.
The main policy shifts introduced by these instruments are described below.
Member states must transpose CRD VI by 1 January 2026; its provisions will apply from 10 January 2026 except for those relating to third-country branches – which become applicable from 11 January 2027. Transitional measures may apply for certain requirements; institutions should closely monitor both national legislative developments (including Bill No 8627) and CSSF guidance regarding implementation timelines.
ESG and CSRD Integration
The Corporate Sustainability Reporting Directive (CSRD – Directive (EU) 2022/2464) is being transposed in Luxembourg via Bill No 8370, tabled in March 2024. The CSRD replaces and significantly expands upon the Non-Financial Reporting Directive by introducing more detailed sustainability reporting obligations for a broader range of entities. The first reporting cycle for large public-interest entities commenced with the 2025 financial year, requiring use of the European Sustainability Reporting Standards (ESRS) – which set out comprehensive disclosure requirements on ESG matters – and digital XBRL tagging from 2026 to enhance comparability across the EU.
For banks, ESG considerations have evolved beyond mere disclosure obligations to become integral components of risk management frameworks. The EBA’s forthcoming 2025 Guidelines on ESG Risk Management and Supervision will formalise expectations that institutions integrate climate-related and environmental risks into their governance structures, business strategies, credit policies, and ICAAP processes; these guidelines will apply to both significant institutions under ECB supervision and less significant institutions overseen by national authorities such as the CSSF.
The CSSF has already begun incorporating ESG elements into SREP assessments, including thematic reviews assessing:
EU AML Package and AML Authority
The EU’s new Anti-Money Laundering (AML) and Counter-Terrorist Financing (CTF) package – comprising AMLR, AMLD6, and the AMLA Regulation, which establishes the pan-European AMLA, will introduce a single rulebook and a centralised supervision model across the European Union. AMLA, headquartered in Frankfurt, will co-ordinate national authorities and directly supervise selected high-risk or systemically important cross-border institutions from 2026 onwards. National authorities will continue to supervise most domestic entities under harmonised standards with enhanced co-ordination.
Luxembourg will amend the Law of 12 November 2004 on AML/CFT to align with this new regime. The CSSF is expected to update its sectoral AML Handbook, risk-factor guidance, and reporting templates once relevant EU secondary legislation is finalised; transitional arrangements may apply during implementation.
Key innovations include:
For Luxembourg banks, this package signals more intensive cross-border co-operation among supervisors and a greater reliance on data-driven monitoring techniques. Institutions will need to modernise screening tools, update group-wide policies and procedures, enhance data quality controls, and ensure their compliance frameworks are robust enough to meet heightened regulatory expectations across all jurisdictions in which they operate.
Securitisation Refit – Streamlining Private Transactions
The EU Securitisation Regulation (Regulation (EU) 2017/2402) is undergoing significant revision as part of the “Securitisation Refit” – a reform initiative aimed at simplifying the regulatory framework and revitalising European securitisation markets within the broader context of capital markets union. Luxembourg, as one of the EU’s key jurisdictions for securitisation activity, is expected to be significantly impacted by these changes.
Key amendments proposed for private securitisations include:
The reform aims to strike an appropriate balance between investor protection and market efficiency, acknowledging the operational burden imposed by previous disclosure templates. Its overarching objective is to enhance securitisation transactions within the European Union as an essential tool for deploying more funds into the real economy – particularly supporting SME financing – and improving secondary market liquidity.
Luxembourg-originated securitisations – especially private and synthetic structures – are expected to benefit from reduced administrative friction, faster execution timelines, and better alignment with capital-relief objectives. Nevertheless, strict compliance with STS standards and due diligence criteria remains critical in order to preserve investor confidence and ensure continued regulatory recognition.
The relevant legislative proposal was released in June 2025; amendments are expected to be implemented in 2026 subject to completion of the EU legislative process. Transitional measures may apply depending on final adoption timelines.
PSD3 and PSR – The New Payments Architecture
The European Commission’s proposals for a new Payment Services Directive (PSD3) and a directly applicable Payment Services Regulation (PSR) are set to modernise Europe’s payments framework by replacing PSD2 (Directive (EU) 2015/2366). This reform aims to strengthen consumer protection, enhance fraud prevention measures, improve open-banking security, and level the regulatory playing field between banks and fintechs.
The package introduces clearer rules on access-to-account interfaces (APIs), expands data-sharing obligations for authorised third-party providers while safeguarding customer privacy, and establishes consistent standards for instant payments as well as strong customer authentication (SCA). Once adopted, the PSR will have direct effect across all member states; PSD3 will require transposition into Luxembourg law – likely through amendments to the 2009 Law.
The CSSF – which supervises payment institutions and e-money institutions – is preparing to adapt its licensing regime and safeguarding requirements once final texts are approved. The CSSF is also assessing alignment between PSR requirements and DORA due to overlapping cyber risk management and incident-reporting obligations.
Implementation of PSD3/PSR will have several impacts on payment operations:
Adoption of the final texts of the PSD3/PSR package is expected in late 2025 or early 2026.
EBA SREP and Stress-Testing Framework Update
The EBA launched consultations in October 2025 on revised Guidelines for SREP as well as on supervisory stress-testing methodologies. These reforms reflect both the CRD VI package and DORA’s operational resilience concepts by integrating ESG, ICT, and governance risk factors more explicitly into prudential assessments. SREP remains a cornerstone of EU banking supervision; EBA Guidelines are binding on national authorities such as the CSSF through the “comply or explain” mechanism.
The updated SREP will:
For supervisory stress testing, the EBA will move toward a more forward-looking, scenario-based approach requiring granular data on climate transition risks, physical risks from environmental events, and cyber-incident losses. Scenario calibration must be robustly documented and subject to board-level oversight.
Luxembourg institutions should prepare for more detailed requests under ICAAP and ILAAP processes – including comprehensive documentation of model assumptions, scenario calibration methodologies, data sources used in stress testing, and evidence of board-level oversight over stress-test governance. While smaller banks will continue to benefit from proportionality in supervisory expectations, all entities must demonstrate clear traceability between their internal risk frameworks and reported ESG/ICT metrics.
The CSSF plans to apply this new framework in its 2026 supervisory cycle – complementing macroprudential assessments conducted by the BCL.
Regulatory Outlook 2026-2027
Luxembourg’s banking regulatory environment is entering one of its most dynamic periods in recent years, characterised by multiple amendments, new legislative packages – including CRD VI/CRR III, DORA, CSRD, the AML package with AMLA establishment, and the Securitisation Refit – and evolving supervisory expectations. Most of these reforms are EU-driven as part of a broader effort to strengthen the resilience, transparency, and competitiveness of Europe’s financial sector. Banks are now expected to adapt their operations to a framework that emphasises sustainability integration, digital-by-design supervision, and co-ordinated evidence-based governance.
Three themes will define the coming regulatory cycle:
In practice, success will depend on institutions’ ability to align risk management, finance, and ESG compliance functions around shared data architectures and control frameworks. While the CSSF continues to apply a proportionate approach tailored to institution size or complexity, it expects demonstrable readiness for change initiatives, credible project governance, robust documentation, and consistent implementation across all business lines.
The years ahead will focus less on introducing new obligations than on proving that governance structures, systems integration efforts, and high-quality data can deliver regulatory outcomes efficiently and transparently within the EU’s modern supervisory model. Institutions achieving this integration early will be best placed to maintain regulatory confidence – and operational resilience – in an increasingly complex European landscape.
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